Finding the Fourth Proportional to 52,813.02, 72,880.71 and 28,938.54

Step by Step Solution

1. Step 1: Write the proportion equation
   52,813.02 : 72,880.71 = 28,938.54 : x
2. Step 2: Convert to fraction form
   52,813.02/72,880.71 = 28,938.54/x
3. Step 3: Cross multiply
   52,813.02x = 72,880.71 × 28,938.54
4. Step 4: Simplify right side
   52,813.02x = 2,109,061,341.56
5. Step 5: Solve for x
   x = 2,109,061,341.56/52,813.02
6. Step 6: Final answer
   x = 39,934.50